Does muscle strength predict working memory? A cross-sectional fNIRS study in older adults.
Objective: Previous research has primarily focused on the association between muscle strength and global cognitive function in older adults, while the connection between muscle strength and advanced cognitive function such as inhibition and working memory (WM) remains unclear. This study aimed to in...
| Publicado en: | Frontiers in Aging Neuroscience pp. 1 - 13 |
|---|---|
| Autores principales: | , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Frontiers Media S.A.
2023
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=173135782&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 173135782 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 16634365 BG2U jtl: Frontiers in Aging Neuroscience issn: 16634365 maglogo: N pubinfo: dt: 2023 pid: 40038 pub: Frontiers Media S.A. artinfo: ui: 173135782 173135782 173135782 10.3389/fnagi.2023.1243283 173135782 ppf: 1 ppct: 12 formats: tig: atl: Does muscle strength predict working memory? A cross-sectional fNIRS study in older adults. aug: au: Zhidong Cai Xing Wang Qiang Wang affil: Department of Physical Education, Suzhou University of Science and Technology, Suzhou, China sug: subj: Muscle Strength Evaluation Memory, Short Term Evaluation Cognition Evaluation Task Performance and Analysis In Old Age Prefrontal Cortex Physiology Hemodynamics In Old Age Human Cross Sectional Studies Spectroscopy, Near-Infrared Methods Grip Strength Lower Extremity Physiology Reaction Time China Aged Aged, 80 and Over Male Female Funding Source Aged: 65+ years Aged, 80 & over Male Female ab: Objective: Previous research has primarily focused on the association between muscle strength and global cognitive function in older adults, while the connection between muscle strength and advanced cognitive function such as inhibition and working memory (WM) remains unclear. This study aimed to investigate the relationship among muscle strength, WM, and task-related cortex hemodynamics. Methods: We recruited eighty-one older adults. Muscle strength was measured using a grip and lower limb strength protocol. We measured the WM performance by using reaction time (RT) and accuracy (ACC) in the N-back task and the cortical hemodynamics of the prefrontal cortex (PFC) by functional near-infrared spectroscopy (fNIRS). Results: We found positive correlations between grip strength (p < 0.05), 30-s sit-up (p < 0.05) and ACC, negative correlation between grip strength (p < 0.05) and RT. Furthermore, we observed positive correlations between grip strength and the level of oxygenated hemoglobin (HbO2) in dorsolateral prefrontal cortex, frontopolar area, ventrolateral prefrontal cortex (p < 0.05), and negative correlations between grip strength and the level of deoxygenated hemoglobin (Hb) in left dorsolateral prefrontal cortex, frontopolar area, left ventrolateral prefrontal cortex (p < 0.05). Additionally, we noticed positive correlations between RT and the level of Hb in left dorsolateral prefrontal cortex, right frontopolar area (p < 0.05), and negative correlations between RT and the level of HbO2 in left dorsolateral prefrontal cortex, frontopolar area (p < 0.05). However, the cortical hemodynamics did not mediate the relationship between muscle strength and WM performance (RT, ACC). Conclusion: The grip strength of older adults predicted WM in the cross-section study. The level of hemodynamics in PFC can serve as a predictor of WM. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|